Screen making method

Abstract

The present invention discloses a method for making a screen, comprising the following steps: treating a steel mesh cloth with a liquid medicine to loosen the mesh knots of the steel mesh cloth; then dehydrating and drying the steel mesh cloth; then using four chucks to clamp the four corners of the rectangular steel mesh cloth respectively, and the four chucks open and tighten the steel mesh cloth, and the mesh of the steel mesh cloth is a square; then synchronously rotating the two chucks at both ends of a short side of the steel mesh cloth forward, and synchronously rotating the two chucks at both ends of the other short side of the steel mesh cloth backward, stretching the mesh of the steel mesh cloth from a square to a rhombus, and making the angle of a pair of acute angles in the rhombus grid reach a predetermined angle; then completing the subsequent plate making steps according to the conventional process. The present invention can stretch the mesh of the steel mesh cloth from a square to a rhombus, and then prepare a screen using a rhombus mesh steel mesh cloth. The screen of the present invention can print a narrower line width, and the linear uniformity will be more stable, and the printing performance will be relatively improved.

Description

Technical Field

[0001] The invention relates to a method for making a screen. Background Art

[0002] Screen printing requires a screen, and the screen printing screen is mainly composed of a steel mesh, a polymer film, and a screen frame. Existing screen printing screens basically use a square mesh steel mesh, but diamond mesh steel mesh is an option for preparing screen printing screens.

[0003] This requires designing a screen manufacturing method using a diamond mesh steel wire cloth. Summary of the invention

[0004] The object of the present invention is to provide a method for making a screen, comprising the following steps:

[0005] Treat the wire mesh with chemicals to loosen the mesh knots; then dehydrate and dry the wire mesh;

[0006] Then, four clamps are used to clamp the four corners of the rectangular steel mesh cloth respectively, and the four clamps stretch the steel mesh cloth tight, and the mesh of the steel mesh cloth is a square;

[0007] Then, the two clamps at both ends of one short side of the wire mesh cloth are synchronously rotated forward, and the two clamps at both ends of the other short side of the wire mesh cloth are synchronously rotated backward, so that the mesh of the wire mesh cloth is stretched from a square to a rhombus, so that a pair of right-angled diagonals in the square mesh is stretched into a pair of acute angles in the rhombus mesh, and another pair of right-angled diagonals in the square mesh is stretched into a pair of obtuse angles in the rhombus mesh, and the angle of the pair of acute angles in the rhombus mesh reaches a predetermined angle;

[0008] Then follow the normal process to complete the subsequent plate making steps.

[0009] Preferably, the predetermined angle is 3 to 45 degrees.

[0010] Preferably, during the process of rotating the chuck, the speed of rotating the chuck forward and backward is controlled to keep the wire mesh cloth in a straight state.

[0011] The advantages and beneficial effects of the present invention are:

[0012] Provided is a screen manufacturing method, which can stretch the mesh of a steel wire mesh cloth from a square to a diamond shape, thereby preparing a screen using the diamond-shaped mesh steel wire mesh cloth.

[0013] The present invention first treats the mesh with a high-concentration liquid medicine to make the mesh structure more ductile, so that the subsequent angle adjustment can have a better extension space.

[0014] The screen of the present invention can print narrower line widths, and the linear uniformity will be more stable, and the printability will be relatively improved.

[0015] The current market trend is towards narrower line widths and stable linearity, and many thick line width screens are gradually being replaced. The invention optimizes fine lines to move towards a finer area, which can enhance the quality of client printing and the linear effect brought about by the optimization.

[0016] The present invention can provide narrower and finer lines, and with the help of an inclined angle, it can improve the printability during printing, make the linearity more uniform, and have an effect of improving the fluidity of the silver paste, which can reduce the situation where the silver paste is blocked on the screen. DETAILED DESCRIPTION

[0017] The specific implementation of the present invention is further described below in conjunction with the examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present invention.

[0018] The present invention provides a screen making method, comprising the following steps: using a liquid medicine to treat a steel wire mesh cloth with square meshes to loosen the mesh knots of the steel wire mesh cloth; then dehydrating and drying the steel wire mesh cloth; then using a stretching mechanism to stretch the steel wire mesh cloth; and then completing subsequent plate making steps according to a conventional process;

[0019] The stretching mechanism includes: a horizontal central gear, a vertical central wheel shaft connected to the central gear at the top, a motor connected to the bottom end of the central wheel shaft, a horizontal left sector gear located on the left side of the central gear and meshing with the central gear, a pair of left clamps arranged on the top surface of the left sector gear, a vertical left wheel shaft connected to the top end of the left sector gear, a horizontal right sector gear located on the right side of the central gear and meshing with the central gear, a pair of right clamps arranged on the top surface of the right sector gear, a vertical right wheel shaft connected to the top end of the right sector gear, and a base located below the motor and supporting the motor, the left wheel shaft and the right wheel shaft; the central wheel shaft is coaxial with the central gear; the left wheel shaft is coaxial with the left sector gear; the right wheel shaft is coaxial with the right sector gear; the central gear is not higher than the left sector gear and the right sector gear; the motor is fixedly connected to the base; the bottom end of the left wheel shaft is provided with a left bearing, and the left bearing The inner ring is fixedly connected to the bottom end of the left wheel shaft, and the outer ring of the left bearing is fixedly connected to the base; the bottom end of the right wheel shaft is sleeved with a right bearing, the inner ring of the right bearing is fixedly connected to the bottom end of the right wheel shaft, and the outer ring of the right bearing is fixedly connected to the base; the left sector gear and the right sector gear are symmetrically arranged with the center gear; the axes of the left sector gear, the center gear and the right sector gear are located on the same straight line, which is arranged along the left and right directions, and the straight line is used as the reference line; the left sector gear and the right sector gear respectively include: an arc edge with teeth, and a pair of straight edges respectively connected to the two ends of the arc edge; the pair of left chucks are respectively arranged at the two ends of the arc edge of the left sector gear, and the pair of left chucks are symmetrically arranged with the reference line; the pair of right-left chucks are respectively arranged at the two ends of the arc edge of the right sector gear, and the pair of right chucks are symmetrically arranged with the reference line; the central angles of the left sector gear and the right sector gear are both 45 to 60 degrees;

[0020] The method of using a stretching mechanism to stretch the wire mesh cloth comprises the following steps:

[0021] Cut the steel mesh into rectangles, wherein the mesh of the steel mesh is square;

[0022] Then, the steel mesh cut into a rectangular shape is arranged above the central gear, and the two ends of one short side of the steel mesh are clamped and fixed by a pair of left clamps, and the two ends of the other short side of the steel mesh are clamped and fixed by a pair of right clamps; at this time, the steel mesh is stretched and tightened by a pair of left clamps and a pair of right clamps, and the weft of the steel mesh is arranged in the left-right direction, and the warp of the steel mesh is arranged in the front-back direction;

[0023] Then the motor is controlled to work, the motor drives the central gear to rotate through the central wheel shaft, the central gear drives the left sector gear and a pair of left clamps thereon to rotate forward, the central gear synchronously drives the right sector gear and a pair of left clamps thereon to rotate backward, and the speed of rotating the left sector gear forward and the speed of rotating the right sector gear backward is controlled to keep the wire mesh in a straight state until the angle between the latitude of the wire mesh and the left and right directions reaches 3 to 45 degrees; at this time, the mesh of the wire mesh is a rhombus (that is, a pair of right-angled diagonals in the square grid is stretched into a pair of acute angles in the rhombus grid, and another pair of right-angled diagonals in the square grid is stretched into a pair of obtuse angles in the rhombus grid, and the angle of a pair of acute angles in the rhombus grid reaches 3 to 45 degrees);

[0024] Then release a pair of left clamps and a pair of right clamps, and take away the wire mesh cloth of the diamond grid from the pair of left clamps and the pair of right clamps.

[0025] More specifically, the subsequent plate-making steps are completed according to the conventional process, including: stretching the screen, laser or chemical etching to remove yarn, degreasing, hot pressing the polymer material film, laser patterning, and inspection.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for making a screen, characterized in that: The steps include: The steel mesh is treated with chemicals to loosen the mesh knots of the steel mesh; then the steel mesh is dehydrated and dried, and the mesh of the steel mesh is square; Then, four clamps are used to clamp the four corners of the rectangular steel wire mesh respectively, and the four clamps stretch the steel wire mesh tight; Then, the two clamps at both ends of one short side of the wire mesh cloth are synchronously rotated forward, and the two clamps at both ends of the other short side of the wire mesh cloth are synchronously rotated backward, so that the mesh of the wire mesh cloth is stretched from a square to a rhombus, so that a pair of right-angled diagonals in the square mesh is stretched into a pair of acute angles in the rhombus mesh, and another pair of right-angled diagonals in the square mesh is stretched into a pair of obtuse angles in the rhombus mesh, and the angle of the pair of acute angles in the rhombus mesh reaches a predetermined angle; Then complete the subsequent plate-making steps according to the normal process; A stretching mechanism including the above-mentioned four clamps is used to stretch the wire mesh cloth; the stretching mechanism includes: a horizontal central gear, a vertical central wheel shaft connected to the central gear at the top, a motor connected to the bottom end of the central wheel shaft, a horizontal left fan-shaped gear located on the left side of the central gear and meshing with the central gear, a pair of left clamps arranged on the top surface of the left fan-shaped gear, a vertical left wheel shaft connected to the top end of the left fan-shaped gear, a horizontal right fan-shaped gear located on the right side of the central gear and meshing with the central gear, a pair of right clamps arranged on the top surface of the right fan-shaped gear, a vertical right wheel shaft connected to the top end of the right fan-shaped gear, and a base located below the motor and supporting the motor, the left wheel shaft and the right wheel shaft; the motor is fixedly connected to the base; the bottom end of the left wheel shaft is provided with a left bearing, the inner ring of the left bearing is fixedly connected to the bottom end of the left wheel shaft, and the outer ring of the left bearing is fixedly connected to the bottom end of the left wheel shaft. The base is fixed; the bottom end of the right wheel axle is sleeved with a right bearing, the inner ring of the right bearing is fixed to the bottom end of the right wheel axle, and the outer ring of the right bearing is fixed to the base; the left sector gear and the right sector gear are symmetrically arranged with the center gear; the axes of the left sector gear, the center gear and the right sector gear are located on the same straight line, and the straight line is arranged along the left and right directions, with the straight line as the reference line; the left sector gear and the right sector gear respectively include: an arc edge with teeth, and a pair of straight edges respectively connected to the two ends of the arc edge; the pair of left chucks are respectively arranged at the two ends of the arc edge of the left sector gear, and the pair of left chucks are symmetrically arranged with the reference line; the pair of right chucks are respectively arranged at the two ends of the arc edge of the right sector gear, and the pair of right chucks are symmetrically arranged with the reference line; the central angles of the left sector gear and the right sector gear are both 45 to 60 degrees.

2. The screen making method according to claim 1, characterized in that: The predetermined angle is 3 to 45 degrees.

3. The screen making method according to claim 2, characterized in that: During the process of rotating the chuck, the speed of rotating the chuck forward and backward is controlled to keep the wire mesh cloth in a straight state.

4. The screen making method according to claim 3, characterized in that: The stretching mechanism is used to stretch the wire mesh, including the following steps: 1) Cut the steel mesh into a rectangle, the mesh of which is a square; 2) Then, the rectangular steel mesh is arranged above the central gear, and the two ends of one short side of the steel mesh are clamped and fixed by a pair of left clamps, and the two ends of the other short side of the steel mesh are clamped and fixed by a pair of right clamps; at this time, the steel mesh is stretched and tightened by a pair of left clamps and a pair of right clamps, and the weft of the steel mesh is arranged in the left-right direction, and the warp of the steel mesh is arranged in the front-back direction; 3) Then control the motor to work, the motor drives the central gear to rotate through the central wheel shaft, the central gear drives the left sector gear and a pair of left chucks to rotate forward, the central gear synchronously drives the right sector gear and a pair of left chucks to rotate backward, and controls the speed of rotating the left sector gear forward and the right sector gear backward, so that the wire mesh cloth remains in a straight state until the angle between the latitude of the wire mesh cloth and the left and right directions reaches 3 to 45 degrees; at this time, the mesh of the wire mesh cloth is a diamond shape; 4) Release a pair of left chucks and a pair of right chucks, and remove the diamond mesh wire cloth from the pair of left chucks and a pair of right chucks.